Inspection and Maintenance
8-16
750-368
CBEX Elite 100-1200 HP
5. Check and replace any gaskets that have been damaged. Gaskets that have been in use for one year or more
should be replaced. In particular, inspect the airbox gasket for damage.
8.14 — Fan/Motor Cassette Installation
To close the fan/motor cassette:
1. Check that all adjustment screws are tight, and check the linkage and IFGR damper for free movement before
closing the unit.
2. Position the cassette into the front door.
3. Slide the cassette into position until it begins to contact the airbox gasket then measure the clearance
between the cassette flange and the front door mounting face. There must be clearance of at least 1/4” to pro-
vide adequate gasket compression when the cassette is mounted tightly to the door.
4. Secure the cassette with the fastening nuts.
5. After the cassette has been secured to the front head, reconnect the davit to the front door by screwing in the
retaining bolt at the top centerline.
Check occasionally that the fan is securely tightened to the motor shaft. Check the clearance between the fan
vanes and housing.
8.15 — Safety Valves
The safety valve is a very important safety device and deserves
attention accordingly.
Follow the recommendations of your boiler inspector regarding
valve inspection and testing. The frequency of testing, either by
the use of the lifting lever or by raising the steam pressure, should
be based on the recommendation of your boiler inspector and/or
the valve manufacturer, and in accordance with Sections VI and
VII of the ASME Boiler and Pressure Vessel Code.
FIGURE 8-13. Safety Valves
When replacing the airbox gasket, use only Cleaver-Brooks components. Failure to use components designed for this
application can result in improper combustion. Failure to follow these instructions could result in equipment damage.
Do not remove the davit arm assembly from the motor/fan cassette without first verifying that the cassette is securely
bolted to the boiler. Failure to follow these instructions could result in serious injury or death.
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